184 PESTS OF GARDEN AND FIELD CROPS 
on which the first generation often is raised. There are from three 
to five generations annually. The adult is a yellowish moth, 
expanding three fourths of an inch. 
Winter is passed as larva or pupa in 
the soil. 
Pe 4 In garden or small areas, the pest 
may be controlled by prompt appli- 
cation of Paris green or arsenate of 
lead. Fall plowing will help for the 
next season. Alfalfa should be well 
disked. No pigweed should be allowed to grow in or near the 
garden or field. 
Fic. 223.— The Garden Web- 
worm. Original. 
The Sugar-beet Webworm (Lozostege sticticalis Linn.) 
The work of this species is practically identical with that of the garden 
webworm. Recently it has developed into a serious pest of sugar beets 
in some of the Westernstates. The larva is an inch long when full grown, 
brownish in color, with a narrow dark stripe edged with white down the 
Sa 
Fic. 224.— The Sugar-beet Web- Fic. 225.— Adult of the Sugar-beet 
worm. Original. Webworm. Original. 
middle of its back, and a light stripe down each side. There are 
numerous dots over the surface of its body. It webs up the foliage 
as it works. 
Winter is passed in a silk cocoon in the soil. The moths emerge in 
the spring and lay eggs on the leaves of pigweed and alfalfa. There isa 
second generation in July and a third in August. It is the last that is 
usually most injurious to sugar beets. 
